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B21A timing and Zenith-Stromberg carb questions 200 1982

Howdy. Newly acquired car, the quest continues...

The car idles too high (about 1800 rpm) and I have yet to lube up the choke and carb.

I measured the timing at 23 deg #1 cyl BTDC, warm engine, choke in.
The engine compartment label states 7 deg BTDC. The car runs pretty smooth. Can my readings be right?

Does the vacuum hose to the distributor need to be disconnected to read the timing?

Also, the distributor body (new cap) is pretty old and I can find no ID or manufacturer numbers on it. What kind and model is it?

Also, does a high idle cause advanced timing or vice versa??

Thanks.






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